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[英]Module Build Failed - Error: Cannot find module (Babel & Rails 6)
[英]Webpack Compile: Cannot find module '@babel/preset-env' when deploy production
我使用 capistrano 部署我的 rails 项目(Rails 6.0.0,Ruby 2.6.0)
启动`bundle exec cap production deploy 时,我得到以下日志
./app/javascript/packs/application.js 中的错误
模块构建失败(来自 ./node_modules/babel-loader/lib/index.js):
错误:找不到模块“@babel/preset-env”
和
./app/javascript/packs/server_rendering.js 中的错误
模块构建失败(来自 ./node_modules/babel-loader/lib/index.js):
错误:找不到模块“@babel/preset-env”
但是当我在本地RAILS_ENV=production bundle exec rails assets:precompile
。 它构建成功
我的package.json
{
"name": "my_app_name",
"private": true,
"dependencies": {
"@babel/preset-react": "^7.0.0",
"@rails/actiontext": "^6.0.0",
"@rails/webpacker": "^4.0.2",
"axios": "^0.19.0",
"babel-plugin-transform-react-remove-prop-types": "^0.4.24",
"core-js": "2",
"prop-types": "^15.7.2",
"react": "^16.8.6",
"react-dom": "^16.8.6",
"react_ujs": "^2.6.0",
"trix": "^1.0.0",
"webpack-dev-server": "^3.3.1"
},
"devDependencies": {
"@babel/preset-env": "^7.7.6",
"babel-preset-env": "^1.7.0",
"webpack-dev-server": "^3.3.1"
}
}
我的应用程序/javascript/packs/application.js
// Support component names relative to this directory:
var componentRequireContext = require.context("components", true);
var ReactRailsUJS = require("react_ujs");
ReactRailsUJS.useContext(componentRequireContext);
我的应用程序/javascript/packs/server_rendering.js
// By default, this pack is loaded for server-side rendering.
// It must expose react_ujs as `ReactRailsUJS` and prepare a require context.
var componentRequireContext = require.context("components", true);
var ReactRailsUJS = require("react_ujs");
ReactRailsUJS.useContext(componentRequireContext);
任何解决方案? 谢谢你
在生产模式下编译时您想要的任何可用内容都需要在dependencies
。 将@babel/preset-env
从devDependencies
移到 package.json 中的dependencies
中。 你也可以删除babel-preset-env
因为那是多余的。
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